Laminated glass



April 8, 1930. F R I 1,753,744

LAMINATED GLASS Filed Aug. 23, 1926 Patented Apr. 8,1930- UNITED! STATES PATENT ori-"Iced- 2mm: rrms'nrg, or TOLEDO, onro, ASSIGNOR 'ro LIBBmr-ownns eI'JAss admin, a or TOLEDO, OHIO, .A CORPORATION OFOHIO v LAMINATED (miss Applic'atibn filed August 23, 1926. Serial No. 130,825.

The glass.

An important object of the invention is to provide a process of producing, as a new article of manufacture, a sheet of laminated glass, and relates particularly to the forma-' tion of a skin on a sheet of glass to permit an eflicient bond between a sheet of glass and a non-brittle sheetof material.

Another object of the invention is topropresent invention relates to laminated k vide, in the production of laminated glass, a

process contemplating the formation of a skin on a sheet of glass consisting in applying a coating of vegetable oil solution to the surface of said sheet of glass and permitting the oil solution to dry, thus forming a skin thereon.

Another object of the invention is to proe of the following description.

In the drawings wherein like numerals are employed to designate like parts throughv out the same,

Fig. 1 is a sectional vie w illustrating diagrammatically the application of a vegetable oil such as linseed oil to a sheet of glass,

Fig.6 is a similar view oflanother form of finished product. I In the production of laminated glass, a

- plurality of sheets of glass and a sheet of non-brittle material are united in a manner that the finished product will be more resist- .tofore.

Fig. 2 illustrates diagrammatically the apglass of equal thickness; and also of a nature that even breakage of the glass will not cause a separation, as-the non brittle material will support and retain said fragments of glass. This type of glass is the ultimate aim in all cases, but due to difiiculties in uniting the laminations with a transparent substance which will notdeteriorate, the production of such glass has been somewhat uncertain herev.

Inthe presentinvention a sheet of glass and a sheet of non-brittle material are united by first forming askin fromsome suitable vegetable. oil on the glass, and then combin ing .this skin with a sheet of non-brittle material using preferably a suitable film of liquid therebetwee'ntoassist in obtaining an intimate and eflicient bond. a y

. In Fig. 1, the numeral 10 designates a sheet of glass to which is applied a coating 11 by means of a brush or the like-12. The. coating.

11 in the present invention is some suitable oil, c'astor oil,getc., the. oil containing, if de sired; a drier suchas the japan drier,-etc. The oil is appliedand preferably permitted to dry so that a residue will remain in the form of a-skin which will be tightly joined to the sheetof glass.

After the skin 11 has dried to'the desired extent, a film of oil 13 is applied by the means 14. The filmof oil may be any suitable liquid which can act as a solvent to the skin l l,"or, if desired, the liquid may have a non-solvent vegetable oil such as cotton seed oil, linseedv V initially "applied centrally of the sheet to force out any excess fluid from between the laminations, t hus giving a finished product 18, shown in Fig. 5, free of Wet spots and other defects.

Fig. 6 illustrates a sheet of so-called bullet proof glass 19 which is relatively thicker and comprising more laminations than the regular sheet 18.

It is to be understood that the form of the I invention herewith shown and described is to be taken as the preferred embodiment of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the Spll'll] of the invention or the scope of the subjoined claims.

- Claims 1. The process of producing laminated glass, consisting in forming a vegetables oil skin on a sheet of glass, and then uniting the same to a sheet of non-brittle material.

2. The process of roducing laminated glass, consisting in app ying a film of oil on a sheet of glass, allowing the film to dry to form a skin on said sheet of glass, and then uniting the same to a sheet of non-brittle material;

3. The process of producing laminated glass, consisting in applying a coating of vegetable oil on a sheet of glass, allowing the coating to dry to the desired degree to .form a skin on said sheet of glass, and then uniting the same to a sheet-of non-brittle material.

4. The process of producing laminated glass, consisting in" applying a coating of a vegetable oil on a sheet of glass, permitting the oil to become set in a manner to form a skin on said sheet of glass, then applying a film of liquid on said skin, and then uniting the same to a sheet of non-brittle material.

5. The rocess of ,producing laminated glass, consisting in'applying a coating of a I and State of Ohio, this 21st dayof August,

vegetable oil on a sheet of glass, permitting the oil to become set in a manner to form a skin on said sheet of glass, then applying a filmof oil to the skin, and then uniting the sameflto a sheet of non-brittle material. 4

6. As a new article of manufacture, a sheet J I of laminated glass including a sheet of glass having a vegetable oil skin thereon.

I. As a new article of manufacture, a sheet of laminated glass including a sheet of glass hagin an oil skin thereon. M

glass, each havin a \vegetable'oil skin thereon, and a sheet 0 non-brittle material interpo'sed therebetween and united thereto.

Signed at Toledo, in the county of Lucas FRANK FRASER.

s a new article of manufacture, a sheet .of laminated glass comprising two sheets of 

